src/Tools/Code/code_runtime.ML
author haftmann
Wed Sep 15 16:56:31 2010 +0200 (2010-09-15)
changeset 39422 9019b6afaa4a
parent 39404 a8c337299bc1
child 39473 33638f4883ac
permissions -rw-r--r--
proper interface for code_reflect
haftmann@39401
     1
(*  Title:      Tools/Code/code_runtime.ML
haftmann@28054
     2
    Author:     Florian Haftmann, TU Muenchen
haftmann@28054
     3
haftmann@34028
     4
Runtime services building on code generation into implementation language SML.
haftmann@28054
     5
*)
haftmann@28054
     6
haftmann@39401
     7
signature CODE_RUNTIME =
haftmann@28054
     8
sig
haftmann@34028
     9
  val target: string
haftmann@39404
    10
  val value: string option
haftmann@39388
    11
    -> (Proof.context -> unit -> 'a) * ((unit -> 'a) -> Proof.context -> Proof.context) * string
haftmann@30970
    12
    -> ((term -> term) -> 'a -> 'a) -> theory -> term -> string list -> 'a
haftmann@39422
    13
  val code_reflect: (string * string list) list -> string list -> string -> string option
haftmann@39422
    14
    -> theory -> theory
haftmann@28054
    15
  val setup: theory -> theory
haftmann@28054
    16
end;
haftmann@28054
    17
haftmann@39401
    18
structure Code_Runtime : CODE_RUNTIME =
haftmann@28054
    19
struct
haftmann@28054
    20
haftmann@39404
    21
(** evaluation **)
haftmann@33992
    22
haftmann@34028
    23
val target = "Eval";
haftmann@28054
    24
haftmann@39422
    25
val truth_struct = "Code_Truth";
haftmann@39422
    26
haftmann@39404
    27
fun value some_target cookie postproc thy t args =
haftmann@39404
    28
  let
haftmann@39404
    29
    val ctxt = ProofContext.init_global thy;
haftmann@39404
    30
    fun evaluator naming program ((_, (_, ty)), t) deps =
haftmann@39404
    31
      let
haftmann@39404
    32
        val _ = if Code_Thingol.contains_dictvar t then
haftmann@39404
    33
          error "Term to be evaluated contains free dictionaries" else ();
haftmann@39404
    34
        val value_name = "Value.VALUE.value"
haftmann@39404
    35
        val program' = program
haftmann@39404
    36
          |> Graph.new_node (value_name,
haftmann@39404
    37
              Code_Thingol.Fun (Term.dummy_patternN, ((([], ty), [(([], t), (NONE, true))]), NONE)))
haftmann@39404
    38
          |> fold (curry Graph.add_edge value_name) deps;
haftmann@39404
    39
        val (program_code, [SOME value_name']) = Code_Target.produce_code_for thy
haftmann@39404
    40
          (the_default target some_target) NONE "Code" [] naming program' [value_name];
haftmann@39404
    41
        val value_code = space_implode " "
haftmann@39404
    42
          (value_name' :: map (enclose "(" ")") args);
haftmann@39404
    43
      in ML_Context.value ctxt cookie (program_code, value_code) end;
haftmann@39404
    44
  in Code_Thingol.dynamic_eval_value thy postproc evaluator t end;
haftmann@39404
    45
haftmann@39404
    46
haftmann@39404
    47
(** instrumentalization **)
haftmann@39404
    48
haftmann@38930
    49
fun evaluation_code thy module_name tycos consts =
haftmann@33992
    50
  let
haftmann@36271
    51
    val (consts', (naming, program)) = Code_Thingol.consts_program thy false consts;
haftmann@34028
    52
    val tycos' = map (the o Code_Thingol.lookup_tyco naming) tycos;
haftmann@38921
    53
    val (ml_code, target_names) = Code_Target.produce_code_for thy
haftmann@38933
    54
      target NONE module_name [] naming program (consts' @ tycos');
haftmann@34028
    55
    val (consts'', tycos'') = chop (length consts') target_names;
haftmann@34028
    56
    val consts_map = map2 (fn const => fn NONE =>
haftmann@34028
    57
        error ("Constant " ^ (quote o Code.string_of_const thy) const
haftmann@34028
    58
          ^ "\nhas a user-defined serialization")
haftmann@34028
    59
      | SOME const'' => (const, const'')) consts consts''
haftmann@34028
    60
    val tycos_map = map2 (fn tyco => fn NONE =>
haftmann@34028
    61
        error ("Type " ^ (quote o Sign.extern_type thy) tyco
haftmann@34028
    62
          ^ "\nhas a user-defined serialization")
haftmann@34028
    63
      | SOME tyco'' => (tyco, tyco'')) tycos tycos'';
haftmann@34028
    64
  in (ml_code, (tycos_map, consts_map)) end;
haftmann@28054
    65
haftmann@28054
    66
haftmann@39404
    67
(* by antiquotation *)
haftmann@28054
    68
haftmann@28054
    69
local
haftmann@28054
    70
haftmann@38930
    71
structure Code_Antiq_Data = Proof_Data
haftmann@28054
    72
(
haftmann@38930
    73
  type T = (string list * string list) * (bool
haftmann@38930
    74
    * (string * ((string * string) list * (string * string) list)) lazy);
haftmann@38930
    75
  fun init _ = (([], []), (true, (Lazy.value ("", ([], [])))));
haftmann@28054
    76
);
haftmann@28054
    77
haftmann@38930
    78
val is_first_occ = fst o snd o Code_Antiq_Data.get;
haftmann@28054
    79
haftmann@30962
    80
fun register_code new_tycos new_consts ctxt =
haftmann@28054
    81
  let
haftmann@38930
    82
    val ((tycos, consts), _) = Code_Antiq_Data.get ctxt;
haftmann@30962
    83
    val tycos' = fold (insert (op =)) new_tycos tycos;
haftmann@30962
    84
    val consts' = fold (insert (op =)) new_consts consts;
haftmann@38930
    85
    val acc_code = Lazy.lazy (fn () =>
haftmann@38930
    86
      evaluation_code (ProofContext.theory_of ctxt) "Code" tycos' consts');
haftmann@38930
    87
  in Code_Antiq_Data.put ((tycos', consts'), (false, acc_code)) ctxt end;
haftmann@30962
    88
haftmann@30962
    89
fun register_const const = register_code [] [const];
haftmann@28054
    90
haftmann@30962
    91
fun register_datatype tyco constrs = register_code [tyco] constrs;
haftmann@30962
    92
haftmann@30962
    93
fun print_const const all_struct_name tycos_map consts_map =
haftmann@30962
    94
  (Long_Name.append all_struct_name o the o AList.lookup (op =) consts_map) const;
haftmann@30962
    95
wenzelm@35019
    96
fun print_code is_first print_it ctxt =
haftmann@30962
    97
  let
haftmann@38930
    98
    val (_, (_, acc_code)) = Code_Antiq_Data.get ctxt;
haftmann@33992
    99
    val (ml_code, (tycos_map, consts_map)) = Lazy.force acc_code;
haftmann@33992
   100
    val ml_code = if is_first then ml_code
haftmann@28054
   101
      else "";
haftmann@38930
   102
    val all_struct_name = "Isabelle";
haftmann@30962
   103
  in (ml_code, print_it all_struct_name tycos_map consts_map) end;
haftmann@28054
   104
haftmann@28054
   105
in
haftmann@28054
   106
wenzelm@35019
   107
fun ml_code_antiq raw_const background =
haftmann@28054
   108
  let
haftmann@31156
   109
    val const = Code.check_const (ProofContext.theory_of background) raw_const;
haftmann@28054
   110
    val is_first = is_first_occ background;
haftmann@28054
   111
    val background' = register_const const background;
wenzelm@35019
   112
  in (print_code is_first (print_const const), background') end;
haftmann@30962
   113
haftmann@28054
   114
end; (*local*)
haftmann@28054
   115
haftmann@28054
   116
haftmann@39404
   117
(* reflection support *)
haftmann@36470
   118
haftmann@36470
   119
fun check_datatype thy tyco consts =
haftmann@36470
   120
  let
haftmann@37448
   121
    val constrs = (map (fst o fst) o snd o Code.get_type thy) tyco;
haftmann@36470
   122
    val missing_constrs = subtract (op =) consts constrs;
haftmann@36470
   123
    val _ = if null missing_constrs then []
haftmann@36470
   124
      else error ("Missing constructor(s) " ^ commas (map quote missing_constrs)
haftmann@36470
   125
        ^ " for datatype " ^ quote tyco);
haftmann@36470
   126
    val false_constrs = subtract (op =) constrs consts;
haftmann@36470
   127
    val _ = if null false_constrs then []
haftmann@36470
   128
      else error ("Non-constructor(s) " ^ commas (map quote false_constrs)
haftmann@36470
   129
        ^ " for datatype " ^ quote tyco);
haftmann@36470
   130
  in () end;
haftmann@36470
   131
haftmann@36470
   132
fun add_eval_tyco (tyco, tyco') thy =
haftmann@36470
   133
  let
haftmann@36470
   134
    val k = Sign.arity_number thy tyco;
haftmann@36470
   135
    fun pr pr' fxy [] = tyco'
haftmann@36470
   136
      | pr pr' fxy [ty] =
haftmann@36470
   137
          Code_Printer.concat [pr' Code_Printer.BR ty, tyco']
haftmann@36470
   138
      | pr pr' fxy tys =
haftmann@36470
   139
          Code_Printer.concat [Code_Printer.enum "," "(" ")" (map (pr' Code_Printer.BR) tys), tyco']
haftmann@36470
   140
  in
haftmann@36470
   141
    thy
haftmann@38923
   142
    |> Code_Target.add_tyco_syntax target tyco (SOME (k, pr))
haftmann@36470
   143
  end;
haftmann@36470
   144
haftmann@36514
   145
fun add_eval_constr (const, const') thy =
haftmann@36514
   146
  let
haftmann@36514
   147
    val k = Code.args_number thy const;
haftmann@36514
   148
    fun pr pr' fxy ts = Code_Printer.brackify fxy
haftmann@38922
   149
      (const' :: the_list (Code_Printer.tuplify pr' Code_Printer.BR (map fst ts)));
haftmann@36514
   150
  in
haftmann@36514
   151
    thy
haftmann@38923
   152
    |> Code_Target.add_const_syntax target const (SOME (Code_Printer.simple_const_syntax (k, pr)))
haftmann@36514
   153
  end;
haftmann@36514
   154
haftmann@38923
   155
fun add_eval_const (const, const') = Code_Target.add_const_syntax target
haftmann@36470
   156
  const (SOME (Code_Printer.simple_const_syntax (0, (K o K o K) const')));
haftmann@36470
   157
haftmann@36514
   158
fun process (code_body, (tyco_map, (constr_map, const_map))) module_name NONE thy =
haftmann@38935
   159
      thy
haftmann@38935
   160
      |> Code_Target.add_reserved target module_name
haftmann@38935
   161
      |> Context.theory_map
haftmann@38935
   162
        (ML_Context.exec (fn () => ML_Context.eval_text true Position.none code_body))
haftmann@38935
   163
      |> fold (add_eval_tyco o apsnd Code_Printer.str) tyco_map
haftmann@38935
   164
      |> fold (add_eval_constr o apsnd Code_Printer.str) constr_map
haftmann@38935
   165
      |> fold (add_eval_const o apsnd Code_Printer.str) const_map
haftmann@36470
   166
  | process (code_body, _) _ (SOME file_name) thy =
haftmann@36470
   167
      let
wenzelm@37950
   168
        val preamble =
wenzelm@37950
   169
          "(* Generated from " ^ Path.implode (Thy_Header.thy_path (Context.theory_name thy))
haftmann@36470
   170
          ^ "; DO NOT EDIT! *)";
haftmann@36470
   171
        val _ = File.write (Path.explode file_name) (preamble ^ "\n\n" ^ code_body);
haftmann@36470
   172
      in
haftmann@36470
   173
        thy
haftmann@36470
   174
      end;
haftmann@36470
   175
haftmann@36470
   176
fun gen_code_reflect prep_type prep_const raw_datatypes raw_functions module_name some_file thy  =
haftmann@36470
   177
  let
haftmann@36470
   178
    val datatypes = map (fn (raw_tyco, raw_cos) =>
haftmann@36470
   179
      (prep_type thy raw_tyco, map (prep_const thy) raw_cos)) raw_datatypes;
haftmann@36514
   180
    val _ = map (uncurry (check_datatype thy)) datatypes;
haftmann@36514
   181
    val tycos = map fst datatypes;
haftmann@36514
   182
    val constrs = maps snd datatypes;
haftmann@36470
   183
    val functions = map (prep_const thy) raw_functions;
haftmann@36514
   184
    val result = evaluation_code thy module_name tycos (constrs @ functions)
haftmann@36514
   185
      |> (apsnd o apsnd) (chop (length constrs));
haftmann@36470
   186
  in
haftmann@36470
   187
    thy
haftmann@36514
   188
    |> process result module_name some_file
haftmann@36470
   189
  end;
haftmann@36470
   190
haftmann@39422
   191
val code_reflect = gen_code_reflect Code_Target.cert_tyco (K I);
haftmann@36470
   192
val code_reflect_cmd = gen_code_reflect Code_Target.read_tyco Code.read_const;
haftmann@36470
   193
haftmann@36470
   194
haftmann@28054
   195
(** Isar setup **)
haftmann@28054
   196
haftmann@28054
   197
val _ = ML_Context.add_antiq "code" (fn _ => Args.term >> ml_code_antiq);
haftmann@28054
   198
haftmann@36470
   199
local
haftmann@36470
   200
haftmann@36470
   201
val datatypesK = "datatypes";
haftmann@36470
   202
val functionsK = "functions";
haftmann@36470
   203
val fileK = "file";
haftmann@36470
   204
val andK = "and"
haftmann@36470
   205
wenzelm@36960
   206
val _ = List.app Keyword.keyword [datatypesK, functionsK];
haftmann@36470
   207
wenzelm@36960
   208
val parse_datatype =
wenzelm@36960
   209
  Parse.name --| Parse.$$$ "=" -- (Parse.term ::: (Scan.repeat (Parse.$$$ "|" |-- Parse.term)));
haftmann@36470
   210
haftmann@36470
   211
in
haftmann@36470
   212
haftmann@36470
   213
val _ =
wenzelm@36960
   214
  Outer_Syntax.command "code_reflect" "enrich runtime environment with generated code"
wenzelm@36960
   215
    Keyword.thy_decl (Parse.name -- Scan.optional (Parse.$$$ datatypesK |-- (parse_datatype
wenzelm@36960
   216
      ::: Scan.repeat (Parse.$$$ andK |-- parse_datatype))) []
wenzelm@36960
   217
    -- Scan.optional (Parse.$$$ functionsK |-- Scan.repeat1 Parse.name) []
wenzelm@36960
   218
    -- Scan.option (Parse.$$$ fileK |-- Parse.name)
haftmann@36534
   219
  >> (fn (((module_name, raw_datatypes), raw_functions), some_file) => Toplevel.theory
haftmann@36470
   220
    (code_reflect_cmd raw_datatypes raw_functions module_name some_file)));
haftmann@36470
   221
haftmann@36470
   222
end; (*local*)
haftmann@36470
   223
haftmann@34028
   224
val setup = Code_Target.extend_target (target, (Code_ML.target_SML, K I));
haftmann@28054
   225
haftmann@28054
   226
end; (*struct*)